现在完成时与现在完成进行时.ppt

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1、Grammar and usage,Police in America have stepped up their search for a boy who went missing.2.People have shown great interest in his disappearance due to sightings of alien visits3.I havent seen Justin since.4.Some people in Dover also say that they have seen aliens.5.People have not ruled out the

2、possibility that Justin was taken by aliens.6.Peterson,who has taken charge of the case.,Present perfect tense,Review:,The Present Perfect Tense Form(结构):,Summary:,have/has+done,Find out some sentences which are in the present perfect tense in the text.,Mr Zhang has just bought a new car,but he has

3、had touble with motorists.When he returns home at night he always find that someone has parked a car outside his gate.Because of this,he has not been able to get his own car into this garage even once.He has to walk home after he parks his car.“whats the matter?Have you bought a car?”“Yes,but”Mr Zha

4、ng has put up a“No parking”sign outside his gate,but it has not any effect.,has just bought,has had,has parked,has not been,Have you bought,has put up,1.The teacher in the black jacket has left.2.We have studied English.3.Kung Weizheng has already finished the homework.4.He has had his lunch.5.I hav

5、e seen the film of Titanic twice.6.Most students have made great progress in reading.7.Mr Feng has just returned from Britain.,Extension 1,Summary 1：,表示过去发生的某一动作对现在造成的影响或产生的结果.现在完成时这一时态强调是过去动作与现在的联系,也就是强调现在的影响和结果.通常与表示包括现在在内的时间副词 just（刚刚）,already（已经）,before,yet（一般疑问：已经；否定句：还）never,ever等状语连用,Drill 1,

6、1.I _(have)lunch already.2.Has the train_(arrive),yet?3.Tome _ never_(be to)China.4.The twin _just _(see)my father.5.The twins _(see)my father just now.,have had,arrived,has,been to,has,seen,saw,1.We(study)English for about four years.2.We(live)in Houji Middle School since three months ago.3.The old

7、 man _（已经死了）for two years.5.Justin has been missing for two weeks.6.I havent seen Guo Yi these days.,Extension 2,have studied,have lived,has been dead,Summary 2：,强调某一动作或状态从过去某一时间开始延续到现在且有可能继续下去用延续动词。通常和for,since.so far,by now,until now,these days,in the last ten years,引导的时间状语连用。,Drill 2,1.The price

8、_recently,but I doubt whether it will remain so.A went down,B will go down C has gone down D was going down2.In the past few years there _ great changes in Da Miao town.A is B were C have been D will be.,Time friends,1.迄今为止：so far,up till now,up to now,until now.2.最近的过去：in the last/past years,recent

9、ly,lately,these few days.3.表示一段时间的短语：all day,all this year,all ones life,瞬间性动词如 arrive,join,die,get,come,buy,sell,leave,borrow,marry 等，以及终止性动词如start,begin,finish等，在现在完成时的肯定形式中不能与“for+一段时间”的时间状语连用，但可以用在否定句或这些动词对应的状态动词中。为了表述这种意思，我们常用相应的延续性动词have,keep,be.等来代替非延续性动词。,Tips:,Choose the right answers,1.I h

10、ave joined/been in the army for ten year.2.He has been to/gone to Dalian many times.3.She has got married/been married to Roberts for a year.4.All the preparations for the task are completed/have been completed,and were ready to start.5.He has gone/been away for two days.6.He has had/has bought this

11、 book for a year.,现在完成时与一般过去时的用法比较现在完成时属于现在时态范围，因此，不能和 yesterday,last night,two weeks ago等表示过去的时间状语连用。The plane has arrived.（说明现在的情况：飞机在这儿）The plane arrived a quarter ago.（动作发生在过去与现在无关）I have taught here for fifteen years.（表示十五年前的动作一直延续到现在，还可能会继续。）I taught here for a year.（曾在这儿教过，但现在不在这儿任教了）,Compara

12、sion,Put the following sentences into English.A:火车已经开走了.B:什么时候开走的?A:半个小时之前开走的.A:这本书我已经买了两年了.B:你在哪儿买的?A:在我老家买的.A:你看过这部电影吗?B:看过.A:什么时候看的.B:上周星期天看的.,A:The train has left.,B:When did it leave.,A:It left half an hour ago.,A:have you seen the film?B:Yes,I have.A:When did you see it?B:I saw it last Sunday.

13、,A:Ive had the book for 2years.B:Where did you buy it?A:I bought it in my hometown.,Correct the mistakes,His father has died.(for 2 years)The football match has begun.(since9:00a.m)The twins have joined the army.(since they are 18years old)My teacher has just left Nanjing.(for 3 days),His father has

14、 been dead for 2 years.,The football match has been on since 9:00 a.m.,The twins have been soldiers/been in the army since they are 18years old.,My teacher has been away from Nanjing for 3 days,Make some sentences using the present perfect tense.,Competition,translation:,不累啊？你已跳了三个小时啦！,Arent you tir

15、ed？You have been jumping for three hours.,她肯定累了，因为她一天一直在跳舞,She must be tired,for she has been dancing all day.,The Present Perfect Continuous Tense,Part B:,Form:,have/has+been+doing,I_(sleep)since sveral days ago,havent been sleeping,Connection with the past:Connection with the present:,I couldnt sl

16、eep several days ago.,I am not sleeping well now.,Analysis(分析),意义：过去某时开始一直延续至今的动作，可能还要继续进行表示动作从过去某一时刻开始，一直延续到现在，现在这个动作可能刚刚终止，也可能仍然在进行着。,Now that she is out of a job,Lucy _going back to school,but she hasnt decided yet.A.had considered B.has been considering C.considered D.is going to consider,Review

17、,链接高考,1.Where have you been?We _ for you everywhere.A.look B.were looking C.have been looking D.had been looked2.I wonder why Jenny _ us recently.We should have heard from her by now.A.hasnt written B.doesnt write C.wont write D.hadnt written,Go through the explanations on page 10 in our book.Discus

18、s the differences between the present perfect tense and the present perfect continuous tense,comparison,comparison,1.The telephone _(ring)for quite a while.Why _anyone_(answer)it?2.They _(practise)the song of welcome to Beijing for some time now,but they still _(not get)it right,has been ringing,have not got,has not answered,have been practising,妙手填词,1.自从2001年以来,中国人的饮食已经发生了很大的变化.,Great changes have taken place inChinese diet since 2001,2.汤姆已经结婚10年了.Tom has been married for ten years,3.学生把所有的零花钱都捐给灾区了（disaster area）The students have donated all their pocket money to the disaster area,